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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1126 (Engine Exhaust System) >> Repair Instructions >> Exhaust Crossover Pipe Replacement (LA1) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Exhaust Crossover Pipe Studs/Nuts
    GM54282Courtesy of GENERAL MOTORS CORP.
  1. Install the exhaust crossover pipe.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the exhaust crossover pipe studs/nuts.

    Tighten:  Tighten the exhaust crossover pipe studs/nuts to 25 N.m (18 lb ft).

    3. Fig 2: Locating Exhaust Crossover Heat Shield & Bolts
    GM54366Courtesy of GENERAL MOTORS CORP.
  3. Install the exhaust crossover heat shield.
  4. Install the exhaust crossover heat shield bolts.

    Tighten:  Tighten the exhaust crossover heat shield bolts to 10 N.m (89 lb in).

  5. Install the thermostat bypass pipe. Refer to Thermostat Bypass Pipes Replacement in Engine Cooling.
  6. Install the inlet radiator hose to the engine. Refer to Radiator Hose Replacement - Inlet (LA1) or Radiator Hose Replacement - Inlet (LY7) in Engine Cooling.
  7. Fill the cooling system with engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
  8. Install the throttle body air inlet duct.
  9. Connect the battery ground (negative) cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (LA1) or Battery Negative Cable Disconnect/Connect Procedure (LY7) in Engine Electrical.
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